Lukas Weichselbaum @webappsec.dev · 09/04/2025One of my teams at Google, 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆, is expanding in 𝗭𝘂𝗿𝗶𝗰𝗵 🇨🇭and 𝗡𝗲𝘄 𝗬𝗼𝗿𝗸 🇺🇸. We're looking for 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝘀 with experience in attacking and securing AI/ML systems. DMs open. 143
Lukas Weichselbaum @webappsec.dev · 18/03/2025Safari Tech Preview 215: Added support for Trusted Types 🎉 webkit.org/blog/16523/r...webkit.orgRelease Notes for Safari Technology Preview 215Safari Technology Preview Release 215 is now available for download for macOS Sequoia and macOS Sonoma. 081
Reposted by Lukas WeichselbaumMichele Spagnuolo @miki.it · 01/03/2025Excited to present Security Signals with @ddworken.bsky.social and @webappsec.dev, my primary project at Google for the past five years. Thanks, @madwebwork.bsky.social! Paper: research.google/pubs/securit... Slides: speakerdeck.com/mikispag/sec...research.googleSecurity Signals: Making Web Security Posture Measurable At Scale 0124
Reposted by Lukas WeichselbaumLukas Weichselbaum @webappsec.dev · 04/02/2025Building secure web apps shouldn't be a burden. We've built a high-assurance web framework at Google that makes security easy for developers. Learn about our "Secure by Design" approach and how it works in our new blog post: bughunters.google.com/blog/6644316... cc: @ddworken.bsky.socialbughunters.google.comBlog: Secure by Design: Google's Blueprint for a High-Assurance Web FrameworkLearn more about how Google has created and deployed a high-assurance web framework that almost completely eliminates exploitable web vulnerabilities. 0185
Lukas Weichselbaum @webappsec.dev · 04/02/2025Building secure web apps shouldn't be a burden. We've built a high-assurance web framework at Google that makes security easy for developers. Learn about our "Secure by Design" approach and how it works in our new blog post: bughunters.google.com/blog/6644316... cc: @ddworken.bsky.socialbughunters.google.comBlog: Secure by Design: Google's Blueprint for a High-Assurance Web FrameworkLearn more about how Google has created and deployed a high-assurance web framework that almost completely eliminates exploitable web vulnerabilities. 0185
Lukas Weichselbaum @webappsec.dev · 04/12/2024The Great Google Password Heist: 15 years of hacking passwords to test our security (and build team culture!) bughunters.google.com/blog/6355265...bughunters.google.comBlog: The Great Google Password Heist: 15 years of hacking passwords to test our security (and build team culture!)The Leaving Tradition in Google's security team, which could be described as a type of small-scale offensive security exercise, is a great (and fun) example of team culture. Curious? See this blog pos... 062
Reposted by Lukas WeichselbaumFreddy @freddyb.bsky.social · 27/11/2024Modern solutions against cross-site attacks (frederikbraun.de/modern-solut...): An article about cross-site leak attacks and browser-based defenses. You will also learn why web security best practices is always opt-in and finally how YOU can get increased security controls.frederikbraun.deModern solutions against cross-site attacksModern solutions against cross-site attacks 03419
Reposted by Lukas WeichselbaumChiefGyk3D @chiefgyk3d.com · 26/11/2024This is my #IT, #Infosec, and #Cybersecurity starter pack. There’s plenty of room if some people want to be added too. But here are some feeds and people I recommend following go.bsky.app/QYMa3yN 4184
Lukas Weichselbaum @webappsec.dev · 26/11/2024MITRE: Cross-Site Scripting Is 2024's Most Dangerous Software Weakness www.darkreading.com/application-...darkreading.comCross-Site Scripting: 2024's Most Dangerous SoftwareIn addition to XSS, MITRE and CISA's 2024 list of the 25 most dangerous security vulnerability types (CWEs) also flagged out-of-bounds write, SQL injection, CSRF, and path traversal. 560
Reposted by Lukas WeichselbaumApril King @april.social · 21/11/2024Handling Cookies is a Minefield: Inconsistencies in the HTTP cookie specification and its implementations have caused a situation where countless websites (including Facebook, Netflix, Okta, WhatsApp, Apple, etc.) are one small mistake away from locking their users out. grayduck.mn/2024/11/21/h... 1216853
Lukas Weichselbaum @webappsec.dev · 22/11/2024Congratulations, this is amazing! Since you asked, our Google CSP/Reporting API collector currently processes ~3.5B reports per day. That's for CSP, COOP, Trusted Types, and custom reporting. It has enabled us to truly scale up deployment of web platform security features across Google in a safe way 020
Reposted by Lukas WeichselbaumKoto @kkotowicz.bsky.social · 21/11/2024@webappsec.dev has go.bsky.app/Uf8dZhz, it's a good one. 131
Reposted by Lukas WeichselbaumAntSwig @antswig.bsky.social · 18/11/2024What do you call a padlock for spiders? Web security! ... I'll see myself out... 042
Reposted by Lukas WeichselbaumBrian Tyler Cohen @briantylercohen.bsky.social · 19/11/2024It took me twelve years (!) to build up my audience on Twitter. It took 5 days to surpass the 50% point of my Twitter following on Bluesky. I’m hopeful that the overall growth on this site will negate the need to go on Twitter altogether. Sad to see what it devolved into, but thrilled to see it die. 1996680434740
Reposted by Lukas WeichselbaumJay 🦋 @jay.bsky.team · 19/11/2024Bluesky now has over 20M people!! 🎉 We've been adding over a million users per day for the last few days. To celebrate, here are 20 fun facts about Bluesky: 307013027816061
Reposted by Lukas Weichselbaumterjanq @terjanq.me · 19/11/2024Great article about multipart parsing. Reminds me about the bypasses I found in modsec parser medium.com/@terjanq/waf...medium.comWAF bypasses via 0daysbased on findings from a live hacking event 1237
Lukas Weichselbaum @webappsec.dev · 18/11/2024Signature-based SRI is being spec'd right now: wicg.github.io/signature-ba... This will be useful for many use case and become relevant for PCIv4 compliance which requires assuring the integrity of sourced scripts (6.4.3). Please chime in and share your use cases: github.com/WICG/signatu... 4143
Lukas Weichselbaum @webappsec.dev · 18/11/2024Web security starter pack is in good shape now and includes many amazing folks passionate about web security like @terjanq.bsky.social and @shehackspurple.bsky.social: go.bsky.app/Uf8dZhz Please share and recommend folks passionate about web security so we can get this community started here 🙂 5198
Lukas Weichselbaum @webappsec.dev · 17/11/2024Read all about how we made web security measurable at Google! Security signals have allowed us to massively scale our web security program and enabled us to deploy security features like CSP or Trusted Types at scale! 0113
Lukas Weichselbaum @webappsec.dev · 17/11/2024I'm in the process of creating a *web security* starter pack and need your help finding more webbies here. Please share and recommend folks passionate about web security in comments below so we can get this community started here 🙂 go.bsky.app/Uf8dZhz 165525
Reposted by Lukas WeichselbaumAlex Rebert @ayper.bsky.social · 15/11/2024Excited to share our latest blog post on memory safety! We’re tackling spatial safety in our massing C++ codebase by hardening live++ by default. It adds bounds checks to things like std::vector, preventing a fair bit of out-of-bounds vulnerabilities: security.googleblog.com/2024/11/retr...security.googleblog.comRetrofitting Spatial Safety to hundreds of millions of lines of C++Posted by Alex Rebert and Max Shavrick, Security Foundations, and Kinuko Yasada, Core Developer Attackers regularly exploit spatial mem... 1278
Lukas Weichselbaum @webappsec.dev · 16/11/2024If you're into web security take a look at my LocoMocoSec keynote slides from this summer about "Google's Recipe for Scaling (Web) Security": speakerdeck.com/lweichselbau... 1218
Lukas Weichselbaum @webappsec.dev · 16/11/2024If you haven't deleted your Twitter account yet, please signal boost this post so we can get more folks connected over here: x.com/we1x/status/...x.comx.com 012
Lukas Weichselbaum @webappsec.dev · 16/11/2024XSS vulnerabilities keeping you up at night? 😱 Google's new "Commitment to Secure by Design" whitepaper has answers! Safe Coding and web platform improvements are key. Read more (page 7): static.googleusercontent.com/media/public...static.googleusercontent.com 082
Lukas Weichselbaum @webappsec.dev · 16/11/2024Everyone who wants to grow/bootstrap their #infosec network here check out John's amazing starter pack! 021